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Finding the Fourth Proportional to 45,314.76, 67,950.16 and 19,012.44

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Solution

The fourth proportional to 45,314.76, 67,950.16 and 19,012.44 is: 28,509.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,314.76 : 67,950.16 = 19,012.44 : x
  2. Step 2: Convert to fraction form
    45,314.76/67,950.16 = 19,012.44/x
  3. Step 3: Cross multiply
    45,314.76x = 67,950.16 × 19,012.44
  4. Step 4: Simplify right side
    45,314.76x = 1,291,898,339.99
  5. Step 5: Solve for x
    x = 1,291,898,339.99/45,314.76
  6. Step 6: Final answer
    x = 28,509.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.